Hi there !
I have the Zenbot 16"x12" using a Bosch Colt 1A Laminate router. I have nothing but awesome success with it. It works really well, but you must remember.... it is a smaller belt driven unit that you must run slower. A good understanding of material cutting speeds will greatly help you.
I also use MACH3 for it. I have been very happy with it and have cut plastic, wood and even aluminum with it. No problems except for my own screw ups.
I am happy with mine and you should be happy with yours.
Good Luck !!